Ref T447, navigator dialog improvements

* slots -> normal functions
* watchdog to bring back navigator in case it gets in background

src/blackgui/components/navigatordialog.cpp

@@ -58,6 +58,10 @@ namespace BlackGui
             m_marginMenuAction = new QWidgetAction(this);
             m_marginMenuAction->setDefaultWidget(m_input);
 
+            // timer
+            m_watchdog.setObjectName(this->objectName() + ":m_timer");
+            connect(&m_watchdog, &QTimer::timeout, this, &CNavigatorDialog::onWatchdog);
+
             this->setContextMenuPolicy(Qt::CustomContextMenu);
             connect(m_input, &CMarginsInput::changedMargins, this, &CNavigatorDialog::menuChangeMargins);
             connect(this, &CNavigatorDialog::customContextMenuRequested, this, &CNavigatorDialog::showContextMenu);
@@ -116,7 +120,8 @@ namespace BlackGui
         void CNavigatorDialog::reject()
         {
             this->hide();
-            emit navigatorClosed();
+            m_watchdog.stop();
+            emit this->navigatorClosed();
         }
 
         void CNavigatorDialog::toggleFrameless()
@@ -124,9 +129,26 @@ namespace BlackGui
             this->setFrameless(!this->isFrameless());
         }
 
-        void CNavigatorDialog::toggleNavigator()
+        void CNavigatorDialog::showNavigator(bool visible)
         {
-            this->setVisible(!this->isVisible());
+            this->setVisible(visible);
+            CGuiUtility::stayOnTop(visible, this);
+            this->show();
+
+            if (visible)
+            {
+                m_watchdog.start(4000);
+            }
+            else
+            {
+                m_watchdog.stop();
+            }
+        }
+
+        void CNavigatorDialog::toggleNavigatorVisibility()
+        {
+            const bool visible = !this->isVisible();
+            this->showNavigator(visible);
         }
 
         void CNavigatorDialog::restoreFromSettings()
@@ -309,6 +331,13 @@ namespace BlackGui
             this->adjustSize();
         }
 
+        void CNavigatorDialog::onWatchdog()
+        {
+            // if (!this->isVisible()) { return; }
+            CGuiUtility::stayOnTop(true, this);
+            this->show();
+        }
+
         void CNavigatorDialog::addToContextMenu(QMenu *contextMenu) const
         {
             QAction *a = contextMenu->addAction(CIcons::resize16(), "1 row", this, &CNavigatorDialog::changeLayout);

src/blackgui/components/navigatordialog.h

@@ -20,7 +20,9 @@
 #include <QObject>
 #include <QScopedPointer>
 #include <QWidgetAction>
+#include <QTimer>
 #include <QGridLayout>
+#include <QTimer>
 
 class QEvent;
 class QMenu;
@@ -57,16 +59,14 @@ namespace BlackGui
             //! Called when dialog is closed
             virtual void reject() override;
 
-        signals:
-            //! Navigator closed
-            void navigatorClosed();
-
-        public slots:
             //! Toggle frameless mode
             void toggleFrameless();
 
+            //! Visibility visibility
+            void showNavigator(bool visible);
+
             //! Toggle visibility
-            void toggleNavigator();
+            void toggleNavigatorVisibility();
 
             //! Restore from settings
             void restoreFromSettings();
@@ -74,6 +74,10 @@ namespace BlackGui
             //! Save to settings
             void saveToSettings();
 
+        signals:
+            //! Navigator closed
+            void navigatorClosed();
+
         protected:
             //! \name Base class events
             //! @{
@@ -119,11 +123,15 @@ namespace BlackGui
             //! Adjust navigator size
             void adjustNavigatorSize(QGridLayout *layout = nullptr);
 
+            //! On watchdog
+            void onWatchdog();
+
             QScopedPointer<Ui::CNavigatorDialog> ui;
             bool m_firstBuild = true;
             int  m_currentColumns = 1;
             QWidgetAction *m_marginMenuAction = nullptr; //!< menu widget(!) action for margin widget
             CMarginsInput *m_input = nullptr; //!< margins widget
+            QTimer m_watchdog;
             BlackMisc::CSetting<BlackGui::Settings::TNavigator> m_settings { this, &CNavigatorDialog::onSettingsChanged };
         };
     } // ns